We were doing simple [tex]P=\rho g h[/tex] problems in class and then all of a sudden I ran into these two when I was doing my homework. We never went over this in class and I have no idea what to do. 1. A whale tank at the zoo is 15 feet deep and filled with sea water. A 6 foot tall by 20 foot wide observation window is on one wall. If the bottom of the window is 3ft above the floor of the tank, what total force does the water exert on the window? 2. Find the force on one square foot side panel that is on the side of a concrete form at the bottom. The form is filled with liquid concrete of specific gravity 2.62. The form is 5/6 ft thick x 8 ft wide x 8 ft tall. I just need a little help to put me in the right direction. Any help would be much appreciated.